I'm still waiting for one last part to finish the install, so Ive only used the head unit in the house so far (using a bench power supply). I'm using it with an iPhone and so trialled both the USB-Carplay and the HDMI-AppRadio/Mirrorlink modes. I was mainly interested in the latter for getting Waze access, which is not available through Carplay mode.
However, you have to go into settings and 'choose' which mode you want - you cant just enable both. And after a brief play Ive decided not to even bother installing the HDMI cable - I found the AppRadio/Mirrorlink mode awkward and buggy. Whereas the Carplay mode is really quite slick - especially with the voice command options, plus it only requires a simple USB connection. I bought a spare cubby shelf, and have mounted a double USB port in the back of it. Rest of the wiring was a doddle, once Id realised that the PCM1 BOSE amp uses the standard (amplified) speaker outputs from the brown ISO plug (strange, but true).
However, you have to go into settings and 'choose' which mode you want - you cant just enable both. And after a brief play Ive decided not to even bother installing the HDMI cable - I found the AppRadio/Mirrorlink mode awkward and buggy. Whereas the Carplay mode is really quite slick - especially with the voice command options, plus it only requires a simple USB connection. I bought a spare cubby shelf, and have mounted a double USB port in the back of it. Rest of the wiring was a doddle, once Id realised that the PCM1 BOSE amp uses the standard (amplified) speaker outputs from the brown ISO plug (strange, but true).